Create and enable a temporary swap file

tempswap.sh

#! /bin/bash
# Create and enable a temporary swap file

SWAPFILE="/tmp/swapfile1"

if [[ $1 == "on" ]]
then
    echo Creating swap file on $SWAPFILE
    dd if=/dev/zero of=$SWAPFILE bs=1024 count=524288
    mkswap $SWAPFILE
    chown root:root $SWAPFILE
    chmod 0600 $SWAPFILE
    swapon $SWAPFILE
elif [[ $1 == "off" ]]
then
    echo Deleting swap file $SWAPFILE
    swapoff -v $SWAPFILE
    rm $WAPFILE 

else
    echo "Usage: tempswap [on|off]"
fi